Elevator.



No.876,599. PATENTED JAN. 14, 1908.

, L. M; SHAW.

ELEVATOR.

APPLICATION FILED IBB.24.1906.

UNITED STATES PATENT OFFICE.

ELEVATOR.

Specification of Letters Patent.

Patented Jan. 14, 1908.

Application filed February 24:. 1906. Serial No. 302.717-

To all whom it may concern:

Be it known that I, LEVI M. SHAW, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Elevators, of which the follow ing is a specification.

This invention relates to elevators employing buckets or receptacles carried by a traveling chain or belt and having an upward travel to deposit the contents at the top of the frame or support, and especially adapted for use in raising water or other liquid and grain or other commodity that will outflow with the tipping of the bucket or receptacle.

The objects of the invention are, to auto matically tip the buckets or receptacles as each successively reaches the upper end or top of the frame or support; to carry the tip ping mechanism partly on the bucket or receptacle and partly by the chain or belt; to suspend the bucket or receptacle on the traveling chain or belt so as to be free to turn and tip to discharge the contents at the deliverypoint; to furnish a trip connection between the bucket or receptacle and the chain or belt, for automatically tipping the bucket or receptacle as it reaches and passes around the upper half circle of the carrying wheels for the chains or belts; and to improve generally the construction, arrangement and operation of the several parts entering into the formation of the elevator as a whole.

The invention consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings, Figure l. is an end elevation showing the buckets, or receptacles, the chains or belts, and the sprocket or carrying wheels, with the frame or support removed; Fig. 2, a side elevation showing the bucket or receptacles, the chains or belts, the sprocket or carrying wheels, and the frame or support; Fig. 3, an end elevation of a bucket or receptacle, and its trip or tipping lever and arm or rod; and Fig. 4, a side elevation of a bucket or receptacle and its trip or tip ping levers and arms or rods.

The arrangement shown has a post or upright A on each side; and each post or upright has at the top and bottom a journal box or bearing a for the shafts of the carrying or driving wheels; but other forms and arrangements of frame or support can be provided to suit the place of use.

A shaft B is mounted in the bottom or lower journal boxes or bearings a, and a shaft 13 is mounted in the top or upper journal boxes or bearings a, in the arrangement shown. The shaft B has fixed thereon two sprocket or carrying wheels I), and the shaft B has fixed thereon two sprocket or carrying wheels I) in line with the wheels b; and over the sprocket or carrying wheels I) and b, on each side, runs a carrier sprocket chain or belt C, on which chains C the buckets or receptacles are mounted and carried. Each chain is formed of links 0, c and c in the construction shown.

As many buckets or receptacles may be used as the length or height of the frame or support will permit. Each bucket or receptacle D can be made of sheet metal or other suitable material; and as shown, each bucket or receptacle D has its top or open side (1 on an incline to facilitate the tipping thereof, and discharging the contents. Each bucket or receptacle D, at each end, has a lever E, through which and the end walls of the bucket or receptacle and the links 0 of the chain or belt C a pivoting rod 6 passes, pivotally mounting the bucket or receptacle on the chains or carrier belts so that it is free to turn or swing. A draw or pull arm F is connected at one end to each lever E by a pin or pivot f, and at the other end is connected by a pin or pivot f to the link 0 of the chain or belt C, so that, as the advance ends of the arms or rods F are carried around the upper circle of the top wheel 13 they will swing downwardly and outwardly and act on the levers E and swing or turn them down, tipping the bucket or receptacle to discharge the contents.

The arrangement shown has a vessel or receiver G, supported on a cross-piece G, into which the buckets or receptacles successively discharge; and the vessel or receiver G can have a discharge spout or pipe g leading therefrom to the point of final delivery.

The operation is as follows: The buckets or receptacles passing or traveling upwardly on the left side of Fig. 1 are filled and those passing or traveling down on the right side of Fig. 1 are empty; and it will be noticed that the filled buckets or receptacles have their open side (Z upward, and the empty ones have their open sides at downward. As the F and the levers E, for, as the link 0 having the end of the arm or rod F pivoted thereto passes the cross center of the wheel B and is carried upward and over the upper traveling surface of the wheels, and as it approaches the vertical center its distance from the vertical center is foreshortened, thus forcing down the other end of the arm E on a greater tangent than its normal one, and turning down the end of the lever E to which the end of the arm is attached, thus tipping the bucket or receptacle more and more as the pivot f approaches the vertical center line of the wheel. It will thus be seen that the bucket or receptacle commences to tip as it approaches the cross center of the wheels I), and continues to tip and empty or discharge the contents untilthe vertical center of the wheels I) is approached, thus insuring the emptying or discharging of the contents of the bucket or receptacle into the vessel or receiver G, which is set in vproperposition to receive the discharge from the time of coinmencement until the time of completion. Each bucket or receptacle is turned completely over as it passes around the upper circle of the carrying wheels and returns to the bottom in that condition; and as each bucket or receptacle approaches the cross center of the lower wheels and the pivot f passes around the lower traveling surface of the wheels 1) each bucket or receptacle is righted and turned with its open side up,

through the action of the arm or bar F and the lever E, which act at the bottom the same as at the top.

It will be seen that each bucket or receptacle travels with its open side up when ascending and with its open side down in descending, and that each bucket or receptacle as it approaches and passes over the upper carrying wheels is tipped to discharge the contents, and each bucket or receptacle, as it reaches and passes under the lower carrying wheels, is tipped and righted to receive its filling. The tipping at both top and bottom is automatically performed, by the circle of the wheel and the levers E on the bucket,

and the arms or rods F, through the swing of the arms or rods produced by the travel of the pivot of the arms or rods to the chains in describing the circle over the upper carrying wheels and under the lower carrying wheels The arrangement shown has two levers, one at each end of the bucket or receptacle, and two arms or rods, one for each lever, but for small buckets or receptacles a single lever and a single -arm or rod would be sullicient; the two levers and the two arms or rodswill be more effective, in that they will prevent side strain or torsion in use. The power for driving the carrier chains or belts can be applied to either the lower shaft or the upper shaft, as may be best'adapted for the location of the elevator.

on the carrier, for the main body of the bucket or receptacle to project inside of the carrier, a lever adjacent to the bottom of and extending transversely of each bucket or receptacle, and a draw-rod pivotally connected to the carrier and to the inner end of each lever, substantially as described.

2. In an elevator, the combination of an upper shaft, a lower shaft, a pair of carrying wheels on each shaft, a chain or belt for each set of upper and lower carrying wheels, a plurality of buckets or receptacles each bucket or receptacle pivotally mounted adjacent to its outer bottom corners on the chains or belts, for the main body of the bucket or receptacle to project inside of the chains or be ts, a lever transversely extending on the end of each bucket or receptacle, adjacent to the bottom and a pull arm or rod for each lever, pivotally connected to the inner end of the lever and to the chain or belt, substantially as described.

3. In an elevator, the combination of an upper shaft, a lower shaft, a pair of carrying wheels on each shaft, a chain or belt for each set of upper and lower wheels, a plurality of buckets or receptacles, a rod for each bucket or receptacle adjacent to the outer bottom corners pivotally mounting the bucket or receptacle on the chains or belts, for the main body of the bucket or receptacle to project inside of the chains or belts, a lever transversely extending on each end of each bucket or receptacle, adjacent to the bottom and an arm or rod for each lever pivotally connected to the inner end of the lever and to the chain or belt, substantially as described.

4. In an elevator, a support, bearings at the top and bottom of the support, a shaft mounted in the upper bearings, a shaft mounted in the lower bearings, a pair of carrying wheels for each shaft, a chain or belt for each set of upper and lower carrying wheels, a plurality of buckets or receptacles, a rod for each bucket or receptacle adjacent to the outer bottom corners pivotally mounting the bucket or receptacle on the chains or belts, for the main body of the bucket or receptacle to project inside of the chains or belts, a lever on each end of each bucket or receptacle, adjacent to the bottom and an arm or rod for each lever pivotally connected to the inner end of the lever and to the chain or belt, substantially as described.

5. In an elevator, a support, bearings at the top and bottom of the support, a shaftmounted in the upper bearings, a shaft mounted in the lower bearings, a pair of carrying wheels for each shaft, a chain or belt for each set of upper and lower carrying wheels, a plurality of buckets or receptacles, a rod for each bucket or receptacle adja cent to the outer bottom corners pivotally mounting the bucket or receptacle on the chains or belts, for the main body thereof to project inside of the chains or belts a lever transversely extending on each end of each bucket or receptacle, adjacent to the bottom an arm or rod for each lever pivotally connected to the inner end of the lever and to the chain or belt, and a vessel or receiverat the upper end of the support and into which the buckets or receptacles successively discharge, substantially as described.

6. In an elevator, the combination of a carrier comprising two chains or belts, a bucket or receptacle mounted adjacent to its outer bottom corners on the carrier, a lever transversely extending on the end 01' the bucket or receptacle, adjacent to the bottom, and an arm or rod pivotally connected to the inner end of the lever and to the carrier, substantially as described.

7. In an elevator, the combination of a vertically trrveling carrier, a plurality of buckets or receptacles each bucket or receptacle mounted adjacent to its outer bottom corners on the carrier, a lever for each bucket or receptacle, transversely of the ends and adjacent to the bottom thereof and an arm or rod for each lever pivotally connected to the lever and to the carrier, substantially as described.

8. In an elevator, the combination of a traveling carrier, a plurality of buckets or receptacles, each bucket or receptacle pivotally connected at its outer bottom corners with. the carrier, for the main body of the bucket or receptacle to project. inside of the carrier, and .a draw rod for each bucket or receptacle pivotally connected to the inner bottom corner of the bucket or receptacle and to the carrier, substantially as described.

9. In an elevator, the combination of upper carrying wheels, lower carrying wheels, a carrier driven by the carrying wheels, a plurality of buckets or receptacles, each bucket or receptacle pivotally connected at its outer bottom corners with the carrier, for the main body of the bucket or receptacle to project inside of the carrier, and a draw rod for each bucket or receptacle pivotally connected to the inner bottom corner of the bucket or receptacle and to the carrier, substantially as described.

10. In an elevator, the combination of upper sprocket wheels, lower sprocket Wheels, a sprocket chain for each pair of sprocket wheels, a plurality of buckets or receptacles, each bucket or receptacle pivotally connected at its outer bottom corners with the sprocket chains, for the main body of the bucket or receptacle to project inside of the chains, and a draw rod for each bucket or receptacle pivotally connected to the inner bottom corner of the bucket or receptacle and to the 1 carrier, substantially as described.

LEVI M. SHAWV.

, Witnesses:

OSCAR W. BOND, l WVM. P. BOND. 

